A Music-box-like Extended Rotational Plucking Energy Harvester with Multiple Piezoelectric Cantilevers
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AbstractVibrational interference has been found to incur inefficient system responses and suboptimal energy harvesting performance as the rotational frequency increases in the conventional rotational plucking energy harvester. As a result, this letter proposes a music-box-like structure of a rotational plucking energy harvester to overcome the problem by extending the rotary cylinder out of plane. A model is proposed and experimentally validated by characterizing its dynamic and energetic characteristics. Numerical analyses show that the proposed rotational plucking structure can reduce the vibrational interference and be capable of harvesting more energy at high rotational frequencies as well as extending the operating frequency range and broadening the half-power bandwidth.
All Author(s) ListFang ST, Fu XL, Du XN, Liao WH
Journal nameApplied Physics Letters
Year2019
Month6
Day10
Volume Number114
Issue Number23
PublisherAMER INST PHYSICS
Article number233902
ISSN0003-6951
eISSN1077-3118
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesPhysics, Applied;Physics

Last updated on 2020-09-07 at 03:10